1601352723 has 32 divisors (see below), whose sum is σ = 2319204096. Its totient is φ = 978905088.

The previous prime is 1601352707. The next prime is 1601352761. The reversal of 1601352723 is 3272531061.

It is not a de Polignac number, because 1601352723 - 2⁴ = 1601352707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1601352223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1234011 + ... + 1235307.

It is an arithmetic number, because the mean of its divisors is an integer number (72475128).

Almost surely, 2^1601352723 is an apocalyptic number.

1601352723 is a deficient number, since it is larger than the sum of its proper divisors (717851373).

1601352723 is a wasteful number, since it uses less digits than its factorization.

1601352723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1601352723 is about 40016.9054650656. The cubic root of 1601352723 is about 1169.9366179413.

Adding to 1601352723 its reverse (3272531061), we get a palindrome (4873883784).

The spelling of 1601352723 in words is "one billion, six hundred one million, three hundred fifty-two thousand, seven hundred twenty-three".